You will prpobably need something that can deliver about 1.5A at 12v well regulated. I dont think a wallwart would be good enough. I have used various power supplies with mine. 12v bench supply, 14.1v LIfe battery, 19.5v laptop power supply and a benchtop supply at 28V. In all cases I have ?a 12v regulator inside the ?case to power the board and raduino and the seperate (high voltage) goes to the final. Effectively I can power my BitX40 form any supply between 12v and 28v and everything works. at 28v I get a bit over 20w output. at 12v I get about 5w output.
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Mike VK3XL
